Change default php version Ubuntu/Debian

update-alternatives –set php /usr/bin/php7.X
update-alternatives –set phar /usr/bin/phar7.X
update-alternatives –set phar.phar /usr/bin/phar.phar7.X
update-alternatives –set phpize /usr/bin/phpize7.X
update-alternatives –set php-config /usr/bin/php-config7.X